michael-simons / neo4j-examples-record-movies

JDK 14 port of https://github.com/neo4j/sdn-rx/tree/master/examples/reactive-web.

Neo4j SDN-RX Reactive Movies based on JDK 14 Records

This is an example project how to use Spring Data Neo4j⚡️RX (SDN-RX) with JDK 14. The domain entities MovieEntity and PersonEntity are JDK 14 Records. Records a currently a preview feature. Thus the project needs to be build with --enable-preview.

The project also uses the Spring Record Support by Oliver. The later is needed to make the records work with Spring Data.

I included a JSON Module that makes Jackson access the fields directly to correctly deserialize records.

Also, have a look at the RepositoryIT. It uses a brand new Spring 5.2.5 feature named @DynamicPropertySource, that makes it incredible easy to create database tests based on Testcontainers.

Packaging

Install a JDK 14 and run ./mvnw clean verify.

Running

You need a Neo4j 4.0 database. The easiest way is creating a Docker instance:

docker run --publish=7474:7474 --publish=7687:7687 -e 'NEO4J_AUTH=neo4j/secret' neo4j:4.0.2    

Then, start the application with preview features enabled and your Neo4j settings:

java --enable-preview -jar target/record-movies-0.0.1-SNAPSHOT.jar --org.neo4j.driver.uri=bolt://localhost:7687 --org.neo4j.driver.authentication.password=secret

To create a new movie, you can run this cUrl command:

curl -X "PUT" "http://localhost:8080/movies" \
     -H 'Content-Type: application/json; charset=utf-8' \
     -d $'{
  "title": "Aeon Flux",
  "description": "Reactive is the new cool",
  "actors": [{
      "name": "Charlize Theron",
      "born": 1975
  }],
  "directors": [{
      "name": "Karyn Kusama",
      "born": 1968
  }]
}'

To retrieve all movies, run

curl http://localhost:8080/movies

To use the build-in examples, goto localhost:7474 and execute the first step of the :play movies command.